Reliability definition: The product completes the definition of the specified function under the specified conditions and within the specified time. For this definition, it is necessary to grasp the following elements:

Product ———— refers to the reliability research object. In actual use, it must be clear what is specifically referred to? For example, it is a unit, a single machine tool, a part or a part of the machine tool.

———— means the operating procedures, load conditions, working environment, maintenance methods and other regulations specified in the relevant technical documents. Due to different working conditions, product reliability is not the same. The conditions for studying reliability must be clearly defined.

Specified time ———— for the machine tool, refers to its working time (day, hour and other calendar time) sometimes expressed by the number of times, such as the number of stress cycles, clutch closing times, etc., in addition, it should be clear that product reliability is related to time, generally speaking, with the increase of time, product reliability to reduce. Therefore, to study the reliability of machine tools, we must clearly specify the time.

The ability to specify functions ———— can be measured qualitatively or quantitatively. In order to evaluate quantitatively, the evaluation parameters are often specified. In order to fully reflect the reliability of a product, only 1-2 parameters is not enough, such as water wheel transfer machine such a complex repairable mechanical system, commonly used a set of parameters - parameter system to measure.

water wheel transfer machine https://www.zjshuangzheng.com/Integrated-Transfer-Machine.html